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` v(Io Mdel.) v j G. VW'. STEWART.

BEARING FUMAR AXLB JOURNALS.

' N0.291,547. "Patntd Jan; 8, "1884.

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.l WWW/Mw MMA UNITED STATES 4PATENT `QEEICE'.

GEORGE W. STEWART, OE ATLANTA, GEORGIA, ASSIGNOR, RY DIRECT AND MEsNE ASSIGNMENTS, To EDMUND HOLLAND, VOE SAME PLAGE, GUS-4 TAvUs G. LANSING,OE NEW YORK, N. Y., THEOPHILUS I). BROWN, OE TOLEDO, OHIO, AND GEO. W. SMITH, OE LAFAYETTE, INDIANA` BEARING FOR CAR-AXLE JOURNALS.

SPECIFICATION forming part of Letters Patent No. 291,547', dated January 8, 1884.

`Application filed May 2D, 1883. (No model.)

provement in Bearings for Car-Axle Journals,

of which the following is a specification.

In the drawings hereto annexed and forming a part of this my specification of said invention, Figure l is a central vertical longitudinal section of a ear journal-box, showing the journal of a `car-axle, a bearing-box#7 and bearing in normal positiontherein. Fig. 2 is a cross-section in the line x w of Fig. l, a

hinged end portion ofthe cover of the box being shown in elevation; and Fig. 3 is a perspective View of the bearing-box, and with my improved j ournal-bearing inserted therein.

The object of my invention is the production of an inexpensive but durable bearing for the journals of a car-axle, and the providing of means for holding such bearing in working position.

In the drawings, A indicates a car journalbox, provided with the usual lid, b, and an opening, c, through which to insert the journal d of a car-axle, E, into said box, as shown in Figs. 1 and 2.

B represents the metal bearing box or shoe,

3o into which my improved bearing G isinserted,

the bearing-box B being provided with projections, as at f f, to t uponthe oblique sides ff of the bearing O, and thus hold the bearing in place againstV sidewise displacement 3,5 when inserted in the box B, as shown, while the ange h and shoulder h, provided on the journal d, serve to prevent the endwise displacement of the bearing C. As indicated in Fig. l, the box A is provided with a proper V4o packing, as at g, to prevent dust from entering the box.

Having described means suitable for holding in place my improved bearing for the journals of car-axles against sidewise and end- Wise displacement when in use, I will now proceed to describe the bearing G, which constitutes the main element of my invention.

motion Oi' the car.

The material used for the construction ofthe bearing is Wood, and I thus avoid the expense attending the use of brass bearings now ordi- 5o narily employed. I rst cut a Wooden bearing, C, of a shape shown in the figures, but of greater dimensions, except as to length, than will be required for the bearing when nished.

In forming the bearing, I so cut it from a piece of Wood that the grain ofthe wood shall extend from side to side of the bearing, instead of longitudinally thereof, so that when in use the journal d Will be at right angles to the grain e. (Represented in short lines in Fig. 3.) I thus, 6o in this particular, form my improved bearing, in order to assist in preventing the lamination of the Wood under the motion of the car. I then boil the bearing in linseed-oil for about three hours; but beforeso doing the bearing may be thoroughly steamed in order to expel the sap from the Wood. Having so done, I now, in any proper manner, impregnate the bearing with a solution of silicate of soda,

borax, or other non-conducting substance, 7oV

and I then subject the bearing to a pressure sufficient to compress it to the desired thickness for use, and at the same time impart to it great density and strength, as Well as enable it to resist the lamination of the Wood by the 7 5 In this manner I am enabled to produce a bearing for axle-journals which, While it is in a measure self-lubricating, will also endure great Wear, and which, when too much Worn, can readily be removed 8O from its box and another one supplied in its place, the expense of the same being very much less than the cost of those now in common use. I would here state that the boiling of the bearing in linseed-oil, as Well as the impregnation thereof with the silicate of soda,

or other non-conducting material, each has the effect of solidifying the Wood of which the bearing is made; and, further, that the bearing is thus rendered in a measure self-lubri- 9o eating, While at the same time the non-conducting substance to Which the bearing is treated prevents the bearing from becoming ignited during its use. The bearngloox B,

t i L i i being made of metal, itself serves to conduct 2. The combination of the Wood bearing C off h eat from the Wooden bearing, and thus with :L metal bearing-box, B, provided With assists to prevent the ignition of the bearing projections f f, substantially as and for the in the act of use. purpose described. 5 What I claim as my invention, and desire to secure by Letters Patent, is l GEORGE XV. STEWART.

1. The non -conducting condensed Wood bearing for axle-journals, in combination with NVitnesses: a metal journal bearing and sustaining box, JOHN T. ARMS, 1o substantially as and for the purpose described. l B. C. FENWICK. 

